Peterhof (Tczew-Peterhof) is a place, that after the Versailles Treaty belonged to Poland and was situated in the administrative region Tczew.
Peterhof (Tczew-Peterhof) was formerly part of the German Empire. In the German Empire, the place was called Peterhof (Dirschau-Peterhof). The place is now called Piotrowo (Tczew-Piotrowo) and belongs to Poland.